Immunochemical and biochemical analysis of the proliferating cell nuclear antigen (PCNA) in HeLa cells.
Immunochemical and biochemical analysis of the proliferating cell nuclear antigen (PCNA) in HeLa cells.
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HeLa 细胞中增殖细胞核抗原 (PCNA) 的免疫化学和生化分析。
DOI:
10.1016/0014-4827(86)90073-x
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发表时间:
1986
影响因子:
3.7
通讯作者:
Mathews,MB
中科院分区:
文献类型:
--
作者:
Sadaie,MR;Mathews,MB
PCNA, also known as cyclin, a protein of molecular weight (MW) 35 000, accumulates in the nuclei of dividing and transformed cells and reacts with autoantibodies from certain lupus patients. Using an indirect immunofluorescence technique, we show that lupus sera containing anti-PCNA antibodies reveal a heterogeneous nuclear fluorescence pattern upon reaction with asynchronous HeLa cells, whereas with synchronized cells a sequence of distinct patterns is disclosed on progression through the cell cycle. Cell-free translation of HeLa cell mRNA followed by immunoprecipitation with anti-PCNA sera shows a single protein with the same apparent MW as PCNA labelled in vivo, suggesting that PCNA is not derived from a larger precursor protein and is not grossly modified by post-translational events. However, a group of at least nine nuclear polypeptides ranging in MW from about 12000 to 110000 are recognized by immunoblotting with anti-PCNA sera, indicating either that additional antigenic sites are produced on denaturation of native proteins or that additional autoantibodies are present in these sera. We also show that PCNA and several of these polypeptides are associated with nuclear structures containing chromatin.
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影响因子:
9.3
作者:
R. Bravo;J. Celis
通讯作者:
J. Celis
影响因子:
64.5
作者:
DUNN, AR;MATHEWS, MB;KELLER, W
通讯作者:
KELLER, W
影响因子:
15.3
作者:
M. Mathews;M. Reichlin;G. Hughes;Ant;R. Bernstein
通讯作者:
R. Bernstein
影响因子:
3.7
作者:
TERASIMA, T;TOLMACH, LJ
通讯作者:
TOLMACH, LJ
DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
M. Sadaie;T. Jing;A. Macgillivray
通讯作者:
A. Macgillivray